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(13 posts)

Yesterday I performed an update from Fedora 16 to Fedora 17.After that everything runs smoothly (including login in graphical environment), until I get a black screen at startup of "KDE Plasma Workspace". In GNOME and 'KDE Plasma Workspace failsafe', I haven't a black screen.The version of KDE is 4.9.

This is what I have already undertaken to solve the problem after google searching, but without success.

move $HOME/.kde to $HOME/.kde.old and logon again.create new fresh dummy user and login with that user.reinstall all KDE related software : $> yum reinstall kde*mv $HOME/.kde.share/config/plasma-desktop-appletsrc $HOME/.kde.share/config/plasma-desktop-appletsrc-brokenadd a new file in /etc/sysconfig/desktop with one line : DISPLAYMANAGER=KDEand mush more => but all without success !

Here is the file '.xsession-errors', but I have not enough skills to read the solution in this file:

static bool QDeclarativeMetaType::isModule(const QByteArray&, int, int) Qt 4.7 import detected; please note that Qt 4.7 is directly reusable as QtQuick 1.x with no code changes. Continuing, but startup time will be slower. link XMLID_34_ hasn't been detected!link XMLID_34_ hasn't been detected!link XMLID_36_ hasn't been detected!QGraphicsScene::addItem: item has already been added to this sceneObject::connect: No such signal QDeclarativeItem_QML_0::maximumWidthChanged()Object::connect: No such signal QDeclarativeItem_QML_0::maximumHeightChanged()Object::connect: No such signal QDeclarativeItem_QML_0::preferredWidthChanged()Object::connect: No such signal QDeclarativeItem_QML_0::preferredHeightChanged()file:///usr/share/kde4/apps/plasma/plasmoids/notifier/contents/ui/devicenotifier.qml:175:5: QML QDeclarativeListView_QML_21: Possible anchor loop detected on vertical anchor.QGraphicsScene::addItem: item has already been added to this sceneObject::connect: No such signal QDeclarativeItem_QML_18::maximumWidthChanged()Object::connect: No such signal QDeclarativeItem_QML_18::maximumHeightChanged()Object::connect: No such signal QDeclarativeItem_QML_18::preferredWidthChanged()Object::connect: No such signal QDeclarativeItem_QML_18::preferredHeightChanged()link XMLID_34_ hasn't been detected!link XMLID_34_ hasn't been detected!link XMLID_36_ hasn't been detected!QGridLayoutEngine::addItem: Cell (0, 1) already takennepomukservicestub: No service name specifiednepomukservicestub: Use --help to get a list of available command line options.krunner(11917) KDevelopSessions::KDevelopSessions: INIT KDEV krunner(11917) KDevelopSessions::loadSessions: LOADSESSION!.>>> QGridLayoutEngine::addItem: Cell (0, 1) already takenQGridLayoutEngine::addItem: Cell (1, 1) already takenkrunner(11917) KDevelopSessions::loadSessions: NEW SESSION: "/home/kdg/.kde/share/apps/kdevelop/sessions/{ad68a71a-c058-42d7-b4a1-0f30fb5cfd9b}/sessionrc" krunner(11917) KDevelopSessions::loadSessions: session: "default" "default" I/O warning : failed to load external entity "/home/kdg/.qalculate/eurofxref-daily.xml"I/O warning : failed to load external entity "/home/kdg/.qalculate/eurofxref-daily.xml"krunner(11917)/libplasma Plasma::Package::isValid: Could not find required file mainscript Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor nepomukservicestub: No service name specifiednepomukservicestub: Use --help to get a list of available command line options.nepomukservicestub: No service name specifiednepomukservicestub: Use --help to get a list of available command line options.nepomukservicestub: No service name specifiednepomukservicestub: Use --help to get a list of available command line options.nepomukservicestub: No service name specifiednepomukservicestub: Use --help to get a list of available command line options.SELinux Troubleshooter: Applet requires SELinux be enabled to run.Object::connect: No such signal QDBusAbstractInterface::StateChanged(uint)Starting Dropbox...** Message: No plugins to load

** (krb5-auth-dialog:11980): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: Unit dbus-org.freedesktop.NetworkManager.service failed to load: No such file or directory. See system logs and 'systemctl status dbus-org.freedesktop.NetworkManager.service' for details.

(krb5-auth-dialog:11980): GLib-GIO-CRITICAL **: GApplication subclass 'KaApplet' failed to chain up on ::startup (from start of override function)Done!Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor Running Mixer_Backend destructor New PolkitAgentListener 0x8f56350 Adding new listener PolkitQt1::Agent::Listener(0x8fdc0a8) for 0x8f56350 plasma-desktop(11897)/plasma StatusNotifierItemSource::refreshCallback: DBusMenu disabled for this application plasma-desktop(11897)/plasma StatusNotifierItemSource::refreshCallback: DBusMenu disabled for this application kmix(11926) sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kded(11867)/kmix sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kmix(11926) sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kded(11867)/kmix sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kded(11867)/kmix sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kmix(11926) sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kded(11867)/kmix sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kmix(11926) sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kmix(11926) sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider kded(11867)/kmix sink_input_cb: Ignoring sink-input due to it being designated as an event and thus handled by the Event slider

I will appreciate your help.Thanks.

Last edited by kdg1955 on Mon Feb 18, 2013 1:53 pm, edited 2 times in total.

OK alt+shift+F12 and my screen is filled with a beautiful painting and my familiar icons. Strange that It took me more then 12 years to learn something about that 'compositing'. But never too late.I'm beginning to understand: because the system does not detect that OpenGl gives problems, there is no automatic fallback to XRender, as described here: http://userbase.kde.org/Desktop_Effects_Performance#Compositing_type.

I can live with the <alt+shift+F12> workaround, probably I will find the parameter to disable OpenGL. Let me know if you advise me to create a bug report (for Fedora?) or have additional advice. Otherwise I close this issue.

Strangely enough I stay in a black screen during the startup of KDE, even after changing the compisite type to XRender as suggested. And also here ctrl+shift+F12 is the solution. What you mean with: start a new thread in KWin section? KDE is started from KDM and I see no way to change this in KDM, but I'm certainly not the guru of KDM. You're right: if it worked in F16 then something went wrong during the update.

For now I give up the search. Probably I will seek more deeply in the coming days.